Answer:
The Earth’s rotation creates an outward force that is highest at the equator and zero at the poles. Since the Earth is not perfectly solid throughout, this force results in the Earth being ‘squashed’ into a slightly flattened sphere.
Explanation:
The last option because you get facts <span />
The correct answer is D. Article.
Articles can never be used without a noun, which is why you will never see The or A or An just standing on its own, without a noun following it.